Linux 下使用简单的一条命令实现控制用户的目录访问权限

yum -y install acl

rpm -qa | grep acl

setfacl 2.2.51 -- set file access control listsUsage: setfacl [-bkndRLP] { -m|-M|-x|-X ... } file ...  -m, --modify=acl        modify the current ACL(s) of file(s)  -M, --modify-file=file  read ACL entries to modify from file  -x, --remove=acl        remove entries from the ACL(s) of file(s)  -X, --remove-file=file  read ACL entries to remove from file  -b, --remove-all        remove all extended ACL entries  -k, --remove-default    remove the default ACL      --set=acl           set the ACL of file(s), replacing the current ACL      --set-file=file     read ACL entries to set from file      --mask              do recalculate the effective rights mask  -n, --no-mask           don't recalculate the effective rights mask  -d, --default           operations apply to the default ACL  -R, --recursive         recurse into subdirectories  -L, --logical           logical walk, follow symbolic links  -P, --physical          physical walk, do not follow symbolic links      --restore=file      restore ACLs (inverse of `getfacl -R')      --test              test mode (ACLs are not modified)  -v, --version           print version and exit  -h, --help              this help text

setfacl -R -m u:ubuntu:- /etc /usr

setfacl -R -x u:ubuntu /etc /usr